IEEE802 compliant. Support PoE applications in both one of Fast / Gigabit Ethernet environments. Support large input voltage range 37Vdc to 57Vdc. Thermal lower off. Short circuit protection. Over latest protection Programmable Classification (Default:Class 0). High DC/DC changing efficiency. Less outside factor one output decoupling capacitor. Isolation level 1 surge protection. Internal build in 2 channel bridge rectifiers. Material: PCB colour: Black Package Contents: 1 x POE Module Only the above package content, assorted products usually are not included. Note: Light mirrored image and varied displays can cause the color of the object within the photo a little diversified from the real thing. The dimension allowed error is +/- 1-3cm.